Apparatus for abrasion resistance

Claim 1

APPARATUS FOR THE PROCESSING OF WEB OF FABRIC INCLUDING A CLOSED CHAMBER PROVIDED WITH ENTRANCE AND EXIT OPENINGS FOR A WEB OF FABRIC, A PLURALITY OF GUIDE MEANS POSITIONED IN UPPER AND LOWER REGIONS WITHIN SAID CHAMBER OVER WHICH SAID FABRIC IS PROGRESSIVELY GUIDED, MEANS IN SAID CHAMBER FOR SUPPLYING AN ATMOSPHERE IN A DIRECTION EXTENDING GENERALLY UPWARDLY OF THE ENTIRE WIDTH OF SAID CHAMBER TO COME INTO CONTACT WITH SAID FABRIC, SAID ATMOSPHERE-SUPPLYING MEANS INCLUDING A TREATING-GAS-DISTRIBUTING DEVICE EXTENDING INTO SAID CHAMBER, SAID GAS DEVICE HAVING MEANS INCLUDING A PIPE ARRANGED TO DISTRIBUTE GAS TO BLEND WITH THE REMAINING CONSTITUENTS OF SAID ATMOSPHERE, AND MEANS FOR SUPPLYING A FABRIC-TREATING GAS AT A PREDETERMINED FLOW RATE TO SAID GAS-DISTRIBUTING DEVICE, SAID LAST-NAMED MEANS INCLUDING A SOURCE OF TREATING GAS AT A GASEOUS PRESSURE GREATER THAN THE GASEOUS PRESSURE OF SAID ATMOSPHERE WITHIN SAID CHAMBER, AND MEANS FOR REGULATING THE RATE OF FLOW OF GAS FROM SAID SUPPLY TO SAID GAS DEVICE TO ESTABLISH SAID PREDETERMINED FLOW RATE.